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Finding the Fourth Proportional to 1,434.43, 2,152.23 and 569.35

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Solution

The fourth proportional to 1,434.43, 2,152.23 and 569.35 is: 854.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.43 : 2,152.23 = 569.35 : x
  2. Step 2: Convert to fraction form
    1,434.43/2,152.23 = 569.35/x
  3. Step 3: Cross multiply
    1,434.43x = 2,152.23 × 569.35
  4. Step 4: Simplify right side
    1,434.43x = 1,225,372.15
  5. Step 5: Solve for x
    x = 1,225,372.15/1,434.43
  6. Step 6: Final answer
    x = 854.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.